Autistic traits predict performance on the block design.

Lancioni et al. (2009) gave college students two short tests. First, the Autism-Spectrum Quotient (AQ) to see how many autism-like traits each person had. Then, the block design task from the IQ kit to see how fast they could copy colored patterns.

They used the 'whole' version of the task. That means the picture stayed in one piece instead of being split into chunks. They wanted to know if higher AQ scores would predict better scores on this puzzle.

People with more autistic traits did better on the unsegmented block design. The higher the AQ score, the faster and more accurate the build.

The link stayed strong even after they removed the few students who already knew they were on the spectrum. In plain words, more autism-like thinking went hand-in-hand with sharper visual-spatial skill.

Two later studies seem to flip the result, but they tested different skills. Clark et al. (2013) found higher AQ adults did worse when drink colour tricked their taste judgment. Ingersoll (2010) saw the same group struggle to read facial cues. Both tasks need quick flexible switching, not pure pattern matching.

Baron-Cohen et al. (2006) backs up the tool itself. That paper showed the AQ cleanly splits autistic teens from typical ones, so we can trust the scores E et al. used.

Bishop et al. (2022) and Patton et al. (2020) extend the idea to new areas. Higher traits predicted poorer vowel clarity and weaker theory-of-mind, again showing social-communication cost, not visual gain. Together the set paints a trade-off picture: more autistic traits can boost detail focus while trimming social flexibility.

If you test a client who scores high on screening tools like the AQ yet has no diagnosis, don't be surprised if they race through visual puzzles while they miss facial cues or sarcasm. You can lean into their strength by using clear, segmented materials for teaching new tasks and by giving extra time for social-cognition drills. Also, when you see strong block-design scores during an IQ test, consider whether further autism screening is warranted. Match your intervention style to the cognitive profile you actually observe, not just the label.